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[tests] refactor node_network_limited

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This commit is contained in:
John Newbery 2017-12-11 12:51:14 -05:00
parent b425131f5a
commit ee5efad6cf
1 changed files with 29 additions and 35 deletions
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64
test/functional/node_network_limited.py
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@ -2,6 +2,12 @@
# Copyright (c) 2017 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Tests NODE_NETWORK_LIMITED.
Tests that a node configured with -prune=550 signals NODE_NETWORK_LIMITED correctly
and that it responds to getdata requests for blocks correctly:
- send a block within 288 + 2 of the tip
- disconnect peers who request blocks older than that."""
from test_framework.messages import CInv, msg_getdata
from test_framework.mininode import NODE_BLOOM, NODE_NETWORK_LIMITED, NODE_WITNESS, NetworkThread, P2PInterface
from test_framework.test_framework import BitcoinTestFramework
@ -12,52 +18,40 @@ class P2PIgnoreInv(P2PInterface):
# The node will send us invs for other blocks. Ignore them.
pass
def send_getdata_for_block(self, blockhash):
getdata_request = msg_getdata()
getdata_request.inv.append(CInv(2, int(blockhash, 16)))
self.send_message(getdata_request)
class NodeNetworkLimitedTest(BitcoinTestFramework):
def set_test_params(self):
self.setup_clean_chain = True
self.num_nodes = 1
self.extra_args = [['-prune=550']]
def get_signalled_service_flags(self):
node = self.nodes[0].add_p2p_connection(P2PIgnoreInv())
NetworkThread().start()
node.wait_for_verack()
services = node.nServices
self.nodes[0].disconnect_p2ps()
node.wait_for_disconnect()
return services
def try_get_block_via_getdata(self, blockhash, must_disconnect):
node = self.nodes[0].add_p2p_connection(P2PIgnoreInv())
NetworkThread().start()
node.wait_for_verack()
getdata_request = msg_getdata()
getdata_request.inv.append(CInv(2, int(blockhash, 16)))
node.send_message(getdata_request)
if (must_disconnect):
# Ensure we get disconnected
node.wait_for_disconnect(5)
else:
# check if the peer sends us the requested block
node.wait_for_block(int(blockhash, 16), 3)
self.nodes[0].disconnect_p2ps()
node.wait_for_disconnect()
def run_test(self):
# NODE_BLOOM & NODE_WITNESS & NODE_NETWORK_LIMITED must now be signaled
assert_equal(self.get_signalled_service_flags(), NODE_BLOOM | NODE_WITNESS | NODE_NETWORK_LIMITED)
node = self.nodes[0].add_p2p_connection(P2PIgnoreInv())
NetworkThread().start()
node.wait_for_verack()
# Test the RPC service flags
assert_equal(int(self.nodes[0].getnetworkinfo()['localservices'], 16), NODE_BLOOM | NODE_WITNESS | NODE_NETWORK_LIMITED)
expected_services = NODE_BLOOM | NODE_WITNESS | NODE_NETWORK_LIMITED
# Now mine some blocks over the NODE_NETWORK_LIMITED + 2(racy buffer ext.) target
self.log.info("Check that node has signalled expected services.")
assert_equal(node.nServices, expected_services)
self.log.info("Check that the localservices is as expected.")
assert_equal(int(self.nodes[0].getnetworkinfo()['localservices'], 16), expected_services)
self.log.info("Mine enough blocks to reach the NODE_NETWORK_LIMITED range.")
blocks = self.nodes[0].generate(292)
# Make sure we can max retrive block at tip-288
# requesting block at height 2 (tip-289) must fail (ignored)
self.try_get_block_via_getdata(blocks[1], False) # last block in valid range
self.try_get_block_via_getdata(blocks[0], True) # first block outside of the 288+2 limit
self.log.info("Make sure we can max retrive block at tip-288.")
node.send_getdata_for_block(blocks[1]) # last block in valid range
node.wait_for_block(int(blocks[1], 16), timeout=3)
self.log.info("Requesting block at height 2 (tip-289) must fail (ignored).")
node.send_getdata_for_block(blocks[0]) # first block outside of the 288+2 limit
node.wait_for_disconnect(5)
if __name__ == '__main__':
NodeNetworkLimitedTest().main()